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On Tue, Feb 21, 2023 at 01:14:55PM +1000, Matt Bryant via Exim-users wrote:

> Is there anyway in exim to force a disconnect but with a temporary 4xx
> failure rather than a hard deny and 5xx error ???. I can see 'drop' does
> the latter case but there seem no equivalent action/verb or command to
> issue a tempfail and then disconnect.

Have you tried configuring the reject code to "421". The Exim SMTP
server should ideally take note of that and also disconnect.

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Viktor.

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No I havent .. didnt think of that will give it a go .. thx

On 21/2/2023 4:19 pm, Viktor Dukhovni via Exim-users wrote:
> On Tue, Feb 21, 2023 at 01:14:55PM +1000, Matt Bryant via Exim-users wrote:
>
>> Is there anyway in exim to force a disconnect but with a temporary 4xx
>> failure rather than a hard deny and 5xx error ???. I can see 'drop' does
>> the latter case but there seem no equivalent action/verb or command to
>> issue a tempfail and then disconnect.
> Have you tried configuring the reject code to "421". The Exim SMTP
> server should ideally take note of that and also disconnect.
>

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Shame although the 421 code sent the connection is not dropped which is
a shame .. would have been a nice solution ..

On 21/2/2023 4:40 pm, Matt Bryant via Exim-users wrote:
> No I havent .. didnt think of that will give it a go .. thx
>
> On 21/2/2023 4:19 pm, Viktor Dukhovni via Exim-users wrote:
>> On Tue, Feb 21, 2023 at 01:14:55PM +1000, Matt Bryant via Exim-users
>> wrote:
>>
>>> Is there anyway in exim to force a disconnect but with a temporary 4xx
>>> failure rather than a hard deny and 5xx error ???. I can see 'drop'
>>> does
>>> the latter case but there seem no equivalent action/verb or command to
>>> issue a tempfail and then disconnect.
>> Have you tried configuring the reject code to "421".  The Exim SMTP
>> server should ideally take note of that and also disconnect.
>>
>

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On 21/02/2023 03:14, Matt Bryant via Exim-users wrote:
> Is there anyway in exim to force a disconnect but with a temporary 4xx failure rather than a hard deny and 5xx error ???. I can see 'drop' does the latter case but there seem no equivalent action/verb or command to issue a tempfail and then disconnect.

No; that's a further departure from standards than Exim is coded to do.
You could raise an RFE if you have a convincing case for it.
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Cheers,
Jeremy


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On Tue, Feb 21, 2023 at 09:30:41AM +0000, Jeremy Harris via Exim-users wrote:

> On 21/02/2023 03:14, Matt Bryant via Exim-users wrote:
> > Is there anyway in exim to force a disconnect but with a temporary
> > 4xx failure rather than a hard deny and 5xx error ???. I can see
> > 'drop' does the latter case but there seem no equivalent action/verb
> > or command to issue a tempfail and then disconnect.
>
> No; that's a further departure from standards than Exim is coded to
> do. You could raise an RFE if you have a convincing case for it.

FWIW, Postfix does drop connectiosn when the user-specified reject code
is 421 or 521. Yes, server-initiated connection termination was not
part of the original design of SMTP ~50 years back when the Internet
was a kinder/gentler place.

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Viktor.

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